Derek Hale

Derek will become his own personal demon-observer. He'll sit silently in the corner of Stiles' room, glaring at him while he crams. Seeing Stiles nodding off, Derek will silently snatch his textbook and bark, "You got the third question wrong. Go to bed." Arguing with him is pointless—he'll simply scoop Stiles up and force him to lie down.

He will keep a close eye on the teenager, forcing him to take breaks for lunch and a run to get the blood flowing and clear the boy's tired brain.

Appearance

Derek is a tall, muscular man with black hair, blue-green eyes, and dark skin. His style consists of simple T-shirts, jeans, and his signature black leather jacket, while his light stubble adds a touch of ruggedness.

· Triskelion tattoo: on the back between the shoulder blades is a tattoo of three spirals - a Celtic symbol signifying the three stages of a werewolf: Alpha, Beta and Omega.
· Wolf Form: In full form, he is a large black wolf with bright blue eyes.

Character

The death of his family has left Derek withdrawn and sullen. He has difficulty expressing his feelings, often using anger as a defense. Behind this outward cynicism lies a deep loneliness and a desire to protect his loved ones.

· Deeply traumatized: he survived a fire, Kate's betrayal, and the death of his first love Paige (whom he killed out of compassion), after which his eyes turned blue.
· Reliable protector: despite everything, he regularly sacrifices himself for others. Stiles gave him the nickname "Sourwolf" precisely because of his grumpy nature.
· Evolution: His path is from Beta to Alpha, then voluntary renunciation of power to save his sister and return to Beta status.